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当前位置: 首页 > 文章 > 超高效液相色谱-串联质谱检测桃中吡唑醚菌酯和啶酰菌胺残留和消解 现代农药 2020 (1) 40-43+56
Position: Home > Articles > Determination of Pyraclostrobin and Boscalid Residue and Dissipation Dynamics in Peaches Using UPLC-MS/MS Modern Agrochemicals 2020 (1) 40-43+56

超高效液相色谱-串联质谱检测桃中吡唑醚菌酯和啶酰菌胺残留和消解

作  者：
刘倩宇;刘颖超;董丰收;徐军;吴小虎;刘新刚;郑永权
单  位：
中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室;河北农业大学河北省植物生理与分子病理学重点实验室
关键词：
吡唑醚菌酯;啶酰菌胺;桃;残留分析;消解动态
摘  要：
本文建立了桃中吡唑醚菌酯和啶酰菌胺的超高效液相色谱-串联三重四极杆质谱(UPLCMS/MS)检测方法,进行田间试验,明确了吡唑醚菌酯和啶酰菌胺在桃上的消解动态。结果表明,在添加水平0.01~2 mg/kg范围内,吡唑醚菌酯在桃中的平均回收率为89.8%~96.9%,相对标准偏差为0.8%~5.4%;啶酰菌胺的平均回收率为81.1%~100.5%,相对标准偏差为3.3%~12.1%;定量限均为0.01 mg/kg。吡唑醚菌酯和啶酰菌胺在桃中的消解动态均符合一级动力学方程,消解半衰期分别为7.2~15.8 d和7.0~11.8 d。
译  名：
Determination of Pyraclostrobin and Boscalid Residue and Dissipation Dynamics in Peaches Using UPLC-MS/MS
作  者：
LIU Qianyu;LIU Yingchao;DONG Fengshou;XU Jun;WU Xiaohu;LIU Xingang;ZHENG Yongquan;The Key Laboratory of Hebei Province for Molecular Plant-Microbe Interaction, Hebei Agricultural University;Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and Insect Pests;
关键词：
pyraclostrobin;;boscalid;;peach;;residue analysis;;dissipation dynamics
摘  要：
A method for the detection of pyraclostrobin and boscalid in peaches by ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS). A field experiment was conducted to determine the dissipation dynamics of pyraclostrobin and boscalid on peaches. The results showed that average recoveries of pyraclostrobin ranged from 89.8% to 96.9% with the relative standard deviations of 0.8% to 5.4%. The average recoveries of boscalid ranged from 81.1% to 100.5% with the relative standard deviations of 3.3% to 12.1% at spiked levels(0.01 to 2 mg/kg).The limit of quantifications were 0.01 mg/kg. The dissipation equations of pyraclostrobin and boscalid in peach samples fit the first order kinetics. The half-lives of pyraclostrobin were 7.2 to 15.8 days and the half-lives of boscalid were 7.0 to11.8 days.

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